CVE-2025-65900 Missing authorization in n/a

Medium 6.5 Published Updated

An authenticated user with basic read permissions can retrieve sensitive information for all platform users due to insufficient permission validation.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-65900?

CVE-2025-65900 is a medium-severity missing authorization vulnerability in n/a, published on 4 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Kalmia CMS version 0.2.0 contains an Incorrect Access Control vulnerability in the /kal-api/auth/users API endpoint. Due to insufficient permission validation and excessive data exposure in the backend, an authenticated user with basic read permissions can retrieve sensitive information for all platform users.

Weakness: CWE-863

Which versions are affected by CVE-2025-65900?

It affects 1 product.

Products include Difuse Kalmia.

How do I fix CVE-2025-65900?

No fix has been published for CVE-2025-65900 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-65900 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-65900 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-f6h7-jxqx-887x.

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